Home / 20,013.36-30,017.76-6,864

Finding the Fourth Proportional to 20,013.36, 30,017.76 and 6,864

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Solution

The fourth proportional to 20,013.36, 30,017.76 and 6,864 is: 10,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.36 : 30,017.76 = 6,864 : x
  2. Step 2: Convert to fraction form
    20,013.36/30,017.76 = 6,864/x
  3. Step 3: Cross multiply
    20,013.36x = 30,017.76 × 6,864
  4. Step 4: Simplify right side
    20,013.36x = 206,041,904.64
  5. Step 5: Solve for x
    x = 206,041,904.64/20,013.36
  6. Step 6: Final answer
    x = 10,295.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.